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-rw-r--r--tools/bpf/bpftool/Makefile8
-rw-r--r--tools/bpf/bpftool/btf.c13
-rw-r--r--tools/bpf/bpftool/btf_dumper.c4
-rw-r--r--tools/bpf/bpftool/cgroup.c4
-rw-r--r--tools/bpf/bpftool/common.c13
-rw-r--r--tools/bpf/bpftool/feature.c8
-rw-r--r--tools/bpf/bpftool/link.c4
-rw-r--r--tools/bpf/bpftool/main.h3
-rw-r--r--tools/bpf/bpftool/map.c8
-rw-r--r--tools/bpf/bpftool/prog.c60
-rw-r--r--tools/bpf/bpftool/struct_ops.c6
11 files changed, 81 insertions, 50 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile
index f610e184ce02..681fbcc5ed50 100644
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -53,7 +53,7 @@ $(LIBBPF_INTERNAL_HDRS): $(LIBBPF_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_HDRS_
$(LIBBPF_BOOTSTRAP): $(wildcard $(BPF_DIR)/*.[ch] $(BPF_DIR)/Makefile) | $(LIBBPF_BOOTSTRAP_OUTPUT)
$(Q)$(MAKE) -C $(BPF_DIR) OUTPUT=$(LIBBPF_BOOTSTRAP_OUTPUT) \
DESTDIR=$(LIBBPF_BOOTSTRAP_DESTDIR:/=) prefix= \
- ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) $@ install_headers
+ ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" $@ install_headers
$(LIBBPF_BOOTSTRAP_INTERNAL_HDRS): $(LIBBPF_BOOTSTRAP_HDRS_DIR)/%.h: $(BPF_DIR)/%.h | $(LIBBPF_BOOTSTRAP_HDRS_DIR)
$(call QUIET_INSTALL, $@)
@@ -215,7 +215,8 @@ $(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF_BOOTSTRAP)
-I$(or $(OUTPUT),.) \
-I$(srctree)/tools/include/uapi/ \
-I$(LIBBPF_BOOTSTRAP_INCLUDE) \
- -g -O2 -Wall -target bpf -c $< -o $@
+ -g -O2 -Wall -fno-stack-protector \
+ -target bpf -c $< -o $@
$(Q)$(LLVM_STRIP) -g $@
$(OUTPUT)%.skel.h: $(OUTPUT)%.bpf.o $(BPFTOOL_BOOTSTRAP)
@@ -293,3 +294,6 @@ FORCE:
.PHONY: all FORCE bootstrap clean install-bin install uninstall
.PHONY: doc doc-clean doc-install doc-uninstall
.DEFAULT_GOAL := all
+
+# Delete partially updated (corrupted) files on error
+.DELETE_ON_ERROR:
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 352290ba7b29..91fcb75babe3 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -537,7 +537,7 @@ static bool btf_is_kernel_module(__u32 btf_id)
len = sizeof(btf_info);
btf_info.name = ptr_to_u64(btf_name);
btf_info.name_len = sizeof(btf_name);
- err = bpf_obj_get_info_by_fd(btf_fd, &btf_info, &len);
+ err = bpf_btf_get_info_by_fd(btf_fd, &btf_info, &len);
close(btf_fd);
if (err) {
p_err("can't get BTF (ID %u) object info: %s", btf_id, strerror(errno));
@@ -606,7 +606,7 @@ static int do_dump(int argc, char **argv)
if (fd < 0)
return -1;
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_prog_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get prog info: %s", strerror(errno));
goto done;
@@ -789,7 +789,10 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type,
}
memset(info, 0, *len);
- err = bpf_obj_get_info_by_fd(fd, info, len);
+ if (type == BPF_OBJ_PROG)
+ err = bpf_prog_get_info_by_fd(fd, info, len);
+ else
+ err = bpf_map_get_info_by_fd(fd, info, len);
close(fd);
if (err) {
p_err("can't get %s info: %s", names[type],
@@ -931,7 +934,7 @@ show_btf(int fd, struct hashmap *btf_prog_table,
int err;
memset(&info, 0, sizeof(info));
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_btf_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get BTF object info: %s", strerror(errno));
return -1;
@@ -943,7 +946,7 @@ show_btf(int fd, struct hashmap *btf_prog_table,
info.name = ptr_to_u64(name);
len = sizeof(info);
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_btf_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get BTF object info: %s", strerror(errno));
return -1;
diff --git a/tools/bpf/bpftool/btf_dumper.c b/tools/bpf/bpftool/btf_dumper.c
index eda71fdfe95a..e7f6ec3a8f35 100644
--- a/tools/bpf/bpftool/btf_dumper.c
+++ b/tools/bpf/bpftool/btf_dumper.c
@@ -57,7 +57,7 @@ static int dump_prog_id_as_func_ptr(const struct btf_dumper *d,
if (prog_fd < 0)
goto print;
- err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
+ err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
if (err)
goto print;
@@ -70,7 +70,7 @@ static int dump_prog_id_as_func_ptr(const struct btf_dumper *d,
info.func_info_rec_size = finfo_rec_size;
info.func_info = ptr_to_u64(&finfo);
- err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
+ err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
if (err)
goto print;
diff --git a/tools/bpf/bpftool/cgroup.c b/tools/bpf/bpftool/cgroup.c
index b46a998d8f8d..ac846b0805b4 100644
--- a/tools/bpf/bpftool/cgroup.c
+++ b/tools/bpf/bpftool/cgroup.c
@@ -82,7 +82,7 @@ static void guess_vmlinux_btf_id(__u32 attach_btf_obj_id)
if (fd < 0)
return;
- err = bpf_obj_get_info_by_fd(fd, &btf_info, &btf_len);
+ err = bpf_btf_get_info_by_fd(fd, &btf_info, &btf_len);
if (err)
goto out;
@@ -108,7 +108,7 @@ static int show_bpf_prog(int id, enum bpf_attach_type attach_type,
if (prog_fd < 0)
return -1;
- if (bpf_obj_get_info_by_fd(prog_fd, &info, &info_len)) {
+ if (bpf_prog_get_info_by_fd(prog_fd, &info, &info_len)) {
close(prog_fd);
return -1;
}
diff --git a/tools/bpf/bpftool/common.c b/tools/bpf/bpftool/common.c
index 620032042576..5a73ccf14332 100644
--- a/tools/bpf/bpftool/common.c
+++ b/tools/bpf/bpftool/common.c
@@ -353,7 +353,7 @@ void get_prog_full_name(const struct bpf_prog_info *prog_info, int prog_fd,
info.func_info_rec_size = sizeof(finfo);
info.func_info = ptr_to_u64(&finfo);
- if (bpf_obj_get_info_by_fd(prog_fd, &info, &info_len))
+ if (bpf_prog_get_info_by_fd(prog_fd, &info, &info_len))
goto copy_name;
prog_btf = btf__load_from_kernel_by_id(info.btf_id);
@@ -488,7 +488,7 @@ static int do_build_table_cb(const char *fpath, const struct stat *sb,
goto out_close;
memset(&pinned_info, 0, sizeof(pinned_info));
- if (bpf_obj_get_info_by_fd(fd, &pinned_info, &len))
+ if (bpf_prog_get_info_by_fd(fd, &pinned_info, &len))
goto out_close;
path = strdup(fpath);
@@ -756,7 +756,7 @@ static int prog_fd_by_nametag(void *nametag, int **fds, bool tag)
goto err_close_fds;
}
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_prog_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get prog info (%u): %s",
id, strerror(errno));
@@ -916,7 +916,7 @@ static int map_fd_by_name(char *name, int **fds)
goto err_close_fds;
}
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_map_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get map info (%u): %s",
id, strerror(errno));
@@ -1026,7 +1026,8 @@ exit_free:
return fd;
}
-int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len)
+int map_parse_fd_and_info(int *argc, char ***argv, struct bpf_map_info *info,
+ __u32 *info_len)
{
int err;
int fd;
@@ -1035,7 +1036,7 @@ int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len)
if (fd < 0)
return -1;
- err = bpf_obj_get_info_by_fd(fd, info, info_len);
+ err = bpf_map_get_info_by_fd(fd, info, info_len);
if (err) {
p_err("can't get map info: %s", strerror(errno));
close(fd);
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c
index 36cf0f1517c9..da16e6a27ccc 100644
--- a/tools/bpf/bpftool/feature.c
+++ b/tools/bpf/bpftool/feature.c
@@ -486,16 +486,16 @@ static void probe_kernel_image_config(const char *define_prefix)
}
}
-end_parse:
- if (file)
- gzclose(file);
-
for (i = 0; i < ARRAY_SIZE(options); i++) {
if (define_prefix && !options[i].macro_dump)
continue;
print_kernel_option(options[i].name, values[i], define_prefix);
free(values[i]);
}
+
+end_parse:
+ if (file)
+ gzclose(file);
}
static bool probe_bpf_syscall(const char *define_prefix)
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c
index 6f4cfe01cad4..f985b79cca27 100644
--- a/tools/bpf/bpftool/link.c
+++ b/tools/bpf/bpftool/link.c
@@ -145,7 +145,7 @@ static int get_prog_info(int prog_id, struct bpf_prog_info *info)
return prog_fd;
memset(info, 0, sizeof(*info));
- err = bpf_obj_get_info_by_fd(prog_fd, info, &len);
+ err = bpf_prog_get_info_by_fd(prog_fd, info, &len);
if (err)
p_err("can't get prog info: %s", strerror(errno));
close(prog_fd);
@@ -327,7 +327,7 @@ static int do_show_link(int fd)
memset(&info, 0, sizeof(info));
again:
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_link_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get link info: %s",
strerror(errno));
diff --git a/tools/bpf/bpftool/main.h b/tools/bpf/bpftool/main.h
index a84224b6a604..0ef373cef4c7 100644
--- a/tools/bpf/bpftool/main.h
+++ b/tools/bpf/bpftool/main.h
@@ -168,7 +168,8 @@ int prog_parse_fd(int *argc, char ***argv);
int prog_parse_fds(int *argc, char ***argv, int **fds);
int map_parse_fd(int *argc, char ***argv);
int map_parse_fds(int *argc, char ***argv, int **fds);
-int map_parse_fd_and_info(int *argc, char ***argv, void *info, __u32 *info_len);
+int map_parse_fd_and_info(int *argc, char ***argv, struct bpf_map_info *info,
+ __u32 *info_len);
struct bpf_prog_linfo;
#if defined(HAVE_LLVM_SUPPORT) || defined(HAVE_LIBBFD_SUPPORT)
diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c
index 88911d3aa2d9..aaeb8939e137 100644
--- a/tools/bpf/bpftool/map.c
+++ b/tools/bpf/bpftool/map.c
@@ -638,7 +638,7 @@ static int do_show_subset(int argc, char **argv)
if (json_output && nb_fds > 1)
jsonw_start_array(json_wtr); /* root array */
for (i = 0; i < nb_fds; i++) {
- err = bpf_obj_get_info_by_fd(fds[i], &info, &len);
+ err = bpf_map_get_info_by_fd(fds[i], &info, &len);
if (err) {
p_err("can't get map info: %s",
strerror(errno));
@@ -708,7 +708,7 @@ static int do_show(int argc, char **argv)
break;
}
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_map_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get map info: %s", strerror(errno));
close(fd);
@@ -764,7 +764,7 @@ static int maps_have_btf(int *fds, int nb_fds)
int err, i;
for (i = 0; i < nb_fds; i++) {
- err = bpf_obj_get_info_by_fd(fds[i], &info, &len);
+ err = bpf_map_get_info_by_fd(fds[i], &info, &len);
if (err) {
p_err("can't get map info: %s", strerror(errno));
return -1;
@@ -925,7 +925,7 @@ static int do_dump(int argc, char **argv)
if (wtr && nb_fds > 1)
jsonw_start_array(wtr); /* root array */
for (i = 0; i < nb_fds; i++) {
- if (bpf_obj_get_info_by_fd(fds[i], &info, &len)) {
+ if (bpf_map_get_info_by_fd(fds[i], &info, &len)) {
p_err("can't get map info: %s", strerror(errno));
break;
}
diff --git a/tools/bpf/bpftool/prog.c b/tools/bpf/bpftool/prog.c
index cfc9fdc1e863..afbe3ec342c8 100644
--- a/tools/bpf/bpftool/prog.c
+++ b/tools/bpf/bpftool/prog.c
@@ -198,7 +198,7 @@ static void show_prog_maps(int fd, __u32 num_maps)
info.nr_map_ids = num_maps;
info.map_ids = ptr_to_u64(map_ids);
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_prog_get_info_by_fd(fd, &info, &len);
if (err || !info.nr_map_ids)
return;
@@ -231,7 +231,7 @@ static void *find_metadata(int prog_fd, struct bpf_map_info *map_info)
memset(&prog_info, 0, sizeof(prog_info));
prog_info_len = sizeof(prog_info);
- ret = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
+ ret = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
if (ret)
return NULL;
@@ -248,7 +248,7 @@ static void *find_metadata(int prog_fd, struct bpf_map_info *map_info)
prog_info.map_ids = ptr_to_u64(map_ids);
prog_info_len = sizeof(prog_info);
- ret = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
+ ret = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
if (ret)
goto free_map_ids;
@@ -259,7 +259,7 @@ static void *find_metadata(int prog_fd, struct bpf_map_info *map_info)
memset(map_info, 0, sizeof(*map_info));
map_info_len = sizeof(*map_info);
- ret = bpf_obj_get_info_by_fd(map_fd, map_info, &map_info_len);
+ ret = bpf_map_get_info_by_fd(map_fd, map_info, &map_info_len);
if (ret < 0) {
close(map_fd);
goto free_map_ids;
@@ -580,7 +580,7 @@ static int show_prog(int fd)
__u32 len = sizeof(info);
int err;
- err = bpf_obj_get_info_by_fd(fd, &info, &len);
+ err = bpf_prog_get_info_by_fd(fd, &info, &len);
if (err) {
p_err("can't get prog info: %s", strerror(errno));
return -1;
@@ -949,7 +949,7 @@ static int do_dump(int argc, char **argv)
for (i = 0; i < nb_fds; i++) {
memset(&info, 0, sizeof(info));
- err = bpf_obj_get_info_by_fd(fds[i], &info, &info_len);
+ err = bpf_prog_get_info_by_fd(fds[i], &info, &info_len);
if (err) {
p_err("can't get prog info: %s", strerror(errno));
break;
@@ -961,7 +961,7 @@ static int do_dump(int argc, char **argv)
break;
}
- err = bpf_obj_get_info_by_fd(fds[i], &info, &info_len);
+ err = bpf_prog_get_info_by_fd(fds[i], &info, &info_len);
if (err) {
p_err("can't get prog info: %s", strerror(errno));
break;
@@ -2170,9 +2170,9 @@ static char *profile_target_name(int tgt_fd)
char *name = NULL;
int err;
- err = bpf_obj_get_info_by_fd(tgt_fd, &info, &info_len);
+ err = bpf_prog_get_info_by_fd(tgt_fd, &info, &info_len);
if (err) {
- p_err("failed to bpf_obj_get_info_by_fd for prog FD %d", tgt_fd);
+ p_err("failed to get info for prog FD %d", tgt_fd);
goto out;
}
@@ -2183,7 +2183,7 @@ static char *profile_target_name(int tgt_fd)
func_info_rec_size = info.func_info_rec_size;
if (info.nr_func_info == 0) {
- p_err("bpf_obj_get_info_by_fd for prog FD %d found 0 func_info", tgt_fd);
+ p_err("found 0 func_info for prog FD %d", tgt_fd);
goto out;
}
@@ -2192,7 +2192,7 @@ static char *profile_target_name(int tgt_fd)
info.func_info_rec_size = func_info_rec_size;
info.func_info = ptr_to_u64(&func_info);
- err = bpf_obj_get_info_by_fd(tgt_fd, &info, &info_len);
+ err = bpf_prog_get_info_by_fd(tgt_fd, &info, &info_len);
if (err) {
p_err("failed to get func_info for prog FD %d", tgt_fd);
goto out;
@@ -2233,10 +2233,38 @@ static void profile_close_perf_events(struct profiler_bpf *obj)
profile_perf_event_cnt = 0;
}
+static int profile_open_perf_event(int mid, int cpu, int map_fd)
+{
+ int pmu_fd;
+
+ pmu_fd = syscall(__NR_perf_event_open, &metrics[mid].attr,
+ -1 /*pid*/, cpu, -1 /*group_fd*/, 0);
+ if (pmu_fd < 0) {
+ if (errno == ENODEV) {
+ p_info("cpu %d may be offline, skip %s profiling.",
+ cpu, metrics[mid].name);
+ profile_perf_event_cnt++;
+ return 0;
+ }
+ return -1;
+ }
+
+ if (bpf_map_update_elem(map_fd,
+ &profile_perf_event_cnt,
+ &pmu_fd, BPF_ANY) ||
+ ioctl(pmu_fd, PERF_EVENT_IOC_ENABLE, 0)) {
+ close(pmu_fd);
+ return -1;
+ }
+
+ profile_perf_events[profile_perf_event_cnt++] = pmu_fd;
+ return 0;
+}
+
static int profile_open_perf_events(struct profiler_bpf *obj)
{
unsigned int cpu, m;
- int map_fd, pmu_fd;
+ int map_fd;
profile_perf_events = calloc(
sizeof(int), obj->rodata->num_cpu * obj->rodata->num_metric);
@@ -2255,17 +2283,11 @@ static int profile_open_perf_events(struct profiler_bpf *obj)
if (!metrics[m].selected)
continue;
for (cpu = 0; cpu < obj->rodata->num_cpu; cpu++) {
- pmu_fd = syscall(__NR_perf_event_open, &metrics[m].attr,
- -1/*pid*/, cpu, -1/*group_fd*/, 0);
- if (pmu_fd < 0 ||
- bpf_map_update_elem(map_fd, &profile_perf_event_cnt,
- &pmu_fd, BPF_ANY) ||
- ioctl(pmu_fd, PERF_EVENT_IOC_ENABLE, 0)) {
+ if (profile_open_perf_event(m, cpu, map_fd)) {
p_err("failed to create event %s on cpu %d",
metrics[m].name, cpu);
return -1;
}
- profile_perf_events[profile_perf_event_cnt++] = pmu_fd;
}
}
return 0;
diff --git a/tools/bpf/bpftool/struct_ops.c b/tools/bpf/bpftool/struct_ops.c
index 903b80ff4e9a..b389f4830e11 100644
--- a/tools/bpf/bpftool/struct_ops.c
+++ b/tools/bpf/bpftool/struct_ops.c
@@ -151,7 +151,7 @@ static int get_next_struct_ops_map(const char *name, int *res_fd,
return -1;
}
- err = bpf_obj_get_info_by_fd(fd, info, &info_len);
+ err = bpf_map_get_info_by_fd(fd, info, &info_len);
if (err) {
p_err("can't get map info: %s", strerror(errno));
close(fd);
@@ -262,7 +262,7 @@ static struct res do_one_id(const char *id_str, work_func func, void *data,
goto done;
}
- if (bpf_obj_get_info_by_fd(fd, info, &info_len)) {
+ if (bpf_map_get_info_by_fd(fd, info, &info_len)) {
p_err("can't get map info: %s", strerror(errno));
res.nr_errs++;
goto done;
@@ -522,7 +522,7 @@ static int do_register(int argc, char **argv)
bpf_link__disconnect(link);
bpf_link__destroy(link);
- if (!bpf_obj_get_info_by_fd(bpf_map__fd(map), &info,
+ if (!bpf_map_get_info_by_fd(bpf_map__fd(map), &info,
&info_len))
p_info("Registered %s %s id %u",
get_kern_struct_ops_name(&info),
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-11-29 13:46:06 +0000